Structure of quantum wires in Au/Si(557)

被引：131

作者：

Robinson, IK

Bennett, PA

Himpsel, FJ

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[2] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA

[3] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.88.096104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The structure of the Au/Si(557) surface is determined from three-dimensional x-ray diffraction measurements, which directly mandate a single Au atom per unit cell. We use a "heavy atom" method in which the Au atom images the rest of the structure. Au is found to substitute for a row of first-layer Si atoms in the middle of the terrace, which then reconstructs by step rebonding and adatoms. The structure is consistent with the 1D metallic behavior seen by photoemission.

引用

页码：4 / 961044

页数：4

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